A cardboard box labeling device
By employing a half-gear and rack meshing mechanism with a return spring and a pressure sensor design, the problems of continuity and accuracy in carton labeling were solved, achieving an efficient and stable carton labeling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BOMAN PACKAGING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional cardboard box labeling methods suffer from problems such as unstable manual operation, mechanical device jamming, and discontinuous labeling, making it difficult to meet the needs of large-scale industrial production.
The system employs a drive mechanism that combines a half-gear and rack meshing with a return spring. Combined with a pressure sensor and positioning ridge, it ensures the continuity and accuracy of the labeling head. Stable labeling is achieved by adjusting the motion frequency and pressure through a servo motor.
It improves the continuity and accuracy of labeling, reduces the frequency and cost of equipment maintenance, and enhances production efficiency and labeling quality.
Smart Images
Figure CN224576980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging equipment technology, specifically a carton labeling device. Background Technology
[0002] In the packaging process of industries such as logistics, e-commerce, and food and beverage, cardboard boxes are commonly used packaging containers. They need to be labeled with key information such as product information, traceability codes, and logistics information. The efficiency and accuracy of labeling directly affect the efficiency of production flow and the reliability of information traceability.
[0003] Traditional carton labeling methods are mainly divided into two categories: manual labeling and mechanical labeling. Manual labeling relies on manual operation, which is not only labor-intensive and costly, but also susceptible to problems such as label misalignment, skewing, and wrinkling due to factors such as operator skill and fatigue. This results in unstable labeling quality, making it difficult to meet the needs of large-scale industrial production. While existing mechanical labeling devices have replaced manual labor to some extent, they still have many shortcomings: some devices use cam mechanisms to drive the labeling head, which has low transmission efficiency with reciprocating mechanisms and causes movement jamming, affecting the continuity of labeling. Utility Model Content
[0004] The purpose of this invention is to provide a carton labeling device to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides a carton labeling device, including a mounting frame. The inner wall of the mounting frame is provided with a conveying mechanism. The upper surface of the mounting frame is provided with a reciprocating labeling mechanism and a driving mechanism. The reciprocating labeling mechanism includes two fixed columns mounted on the upper surface of one side of the mounting frame. A rotating rod is rotatably connected to the opposite side of the fixed columns. A half gear is sleeved in the middle section of the rotating rod. A rack meshes with the side of the half gear. A fixed slide is fixedly mounted on the upper surface of the mounting frame. The rack is slidably connected to the fixed slide. A connecting strip is mounted on the top of the rack. A sliding column is mounted at the bottom of the other end of the connecting strip. A fixed plate is fixedly mounted on the side of the fixed slide near the center of the mounting frame. A limit frame is connected to the fixed plate. A labeling head body is mounted on the bottom of the sliding column. The sliding column is located at the center of the limit frame, and the labeling head body is slidably connected to the inner wall of the limit frame.
[0006] Furthermore, the sliding column is fitted with a return spring, the top of the limiting frame is fixedly installed with a limiting bracket, the two ends of the return spring are fixedly connected to the connecting strip and the limiting bracket respectively, and the sliding column is slidably connected to the limiting bracket.
[0007] Furthermore, the drive mechanism includes a servo motor fixedly mounted on the upper surface of the mounting bracket. The servo motor is fixedly connected to two pulleys. The two pulleys are rotatably connected to one of the fixed columns. A belt connects the two pulleys and drives them together. The rotating rod is fixedly connected to the other pulley.
[0008] Furthermore, the conveying mechanism includes a conveyor body, and a DC motor is fixedly mounted on one side of the mounting frame, the DC motor being connected to the conveyor body for transmission.
[0009] Furthermore, the main body of the conveyor is a belt conveyor.
[0010] Furthermore, a pressure sensor is provided at the bottom of the labeling head body, and the pressure sensor is electrically connected to the servo motor.
[0011] Furthermore, the upper surface of the conveyor body is provided with several sets of positioning protrusions at equal intervals along the conveying direction. Each set of positioning protrusions includes two symmetrically arranged rubber protrusions, and the distance between the two rubber protrusions is adapted to the width of the carton.
[0012] Furthermore, the outer wall of the reset spring is fitted with a dustproof sleeve, which has a corrugated tube structure.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model adopts a driving method of half gear and rack meshing with a return spring. When the half gear rotates, it drives the rack to reciprocate linearly along the fixed slide. When the half gear and rack disengage, the elastic force of the return spring assists the rack to quickly return to its original position, ensuring the continuity and stability of the reciprocating motion and avoiding motion jamming.
[0015] 2. This utility model features equally spaced positioning protrusions on the surface of the conveyor body. The spacing between the two symmetrical rubber protrusions in each group of positioning protrusions is adapted to the width of the carton, effectively limiting the carton's position during transport and preventing it from shifting, thus ensuring the accuracy of the labeling position. A pressure sensor is installed at the bottom of the labeling head to monitor the contact pressure between the label and the carton surface in real time. When the pressure is abnormal, the pressure sensor sends an electrical signal to the servo motor, which adjusts the speed to regulate the labeling pressure in real time, avoiding problems such as carton damage, label breakage, or insecure adhesion, significantly improving labeling quality. The return spring is fitted with a corrugated dustproof sleeve to prevent dust and impurities from entering the spring gaps, preventing the return spring from losing elasticity or becoming stuck due to dust accumulation, further extending the equipment's service life and reducing maintenance frequency and costs. Attached Figure Description
[0016] Figure 1A schematic diagram of the main body of a cardboard box labeling device;
[0017] Figure 2 This is a schematic diagram of the reciprocating labeling mechanism in a carton labeling device;
[0018] Figure 3 A top view schematic diagram of a cardboard box labeling device;
[0019] Figure 4 This is a side view of a cardboard box labeling device.
[0020] In the picture:
[0021] 1. Mounting bracket; 2. Transmitter body; 3. Limiting bracket; 4. Fixing plate; 5. Labeling head body; 6. Limiting frame; 7. Fixing column; 8. Rotating rod; 9. Half gear; 10. Pulley; 11. Belt; 12. Servo motor; 13. Fixed slide; 14. Rack; 15. Connecting strip; 16. Sliding column; 17. Return spring; 18. DC motor; 19. Positioning protrusion. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides a technical solution:
[0024] See Figure 1 and Figure 2As shown, a carton labeling device includes a mounting frame 1. The inner wall of the mounting frame 1 is equipped with a conveying mechanism. The upper surface of the mounting frame 1 is equipped with a reciprocating labeling mechanism and a driving mechanism. The reciprocating labeling mechanism includes two fixed posts 7 mounted on the upper surface of one side of the mounting frame 1. A rotating rod 8 is rotatably connected to the opposite side of the fixed posts 7. A half-gear 9 is sleeved in the middle section of the rotating rod 8. A rack 14 meshes with the side of the half-gear 9. A fixed slide 13 is fixedly mounted on the upper surface of the mounting frame 1. The rack 14 is slidably connected to the fixed slide 13. A connecting strip 15 is mounted on the top of the rack 14. A sliding post 16 is installed at the bottom of the other end of the connecting strip 15. A fixing plate 4 is fixedly installed on the side of the fixed slide 13 near the center of the mounting frame 1. The fixing plate 4 is connected to the limiting frame 6. The bottom end of the sliding post 16 is equipped with the labeling head body 5. The sliding post 16 is located at the center of the limiting frame 6 and the labeling head body 5 is slidably connected to the inner wall of the limiting frame 6. A return spring 17 is sleeved on the sliding post 16. A limiting frame 3 is fixedly installed on the top of the limiting frame 6. The two ends of the return spring 17 are fixedly connected to the connecting strip 15 and the limiting frame 3 respectively. The sliding post 16 is slidably connected to the limiting frame 3.
[0025] In the specific implementation process, after the device is started, the drive mechanism drives the rotating rod 8 to rotate, and the half gear 9 in the middle section of the rotating rod 8 rotates synchronously with it. Since the half gear 9 meshes with the rack 14, and the rack 14 is slidably connected to the fixed slide 13, the rotation of the half gear 9 will drive the rack 14 to make reciprocating linear motion along the fixed slide 13. The connecting strip 15 at the top of the rack 14 moves accordingly, and then drives the labeling head body 5 to move through the sliding column 16. During the movement of the sliding column 16, the limiting frame 6 guides the sliding column 16 to ensure that the labeling head body 5 moves stably along the preset trajectory. At the same time, the return spring 17 is always in an elastic deformation state. When the half gear 9 disengages from the rack 14, the elastic force of the return spring 17 will assist the rack 14 to return to its original position, ensuring the continuity of the reciprocating motion. The labeling head body 5 completes the labeling action on the carton on the conveying mechanism in the reciprocating motion.
[0026] It should be noted that the number of teeth and module of the half gear 9 should be designed according to the reciprocating stroke requirements of the labeling head body 5 to ensure that the moving distance of the rack 14 meets the labeling coverage range. Lubricant should be added to the sliding connection between the fixed slide 13 and the rack 14 to reduce friction loss and extend the service life of the mechanism.
[0027] See Figure 2 As shown, the drive mechanism includes a servo motor 12 fixedly mounted on the upper surface of the mounting bracket 1. The servo motor 12 is fixedly connected to two pulleys 10. The two pulleys 10 are rotatably connected to one of the fixed columns 7. A belt 11 is connected between the two pulleys 10 and the belt 11 drives the connection. The rotating rod 8 is fixedly connected to the other pulley 10.
[0028] In the specific implementation process, after the servo motor 12 is started, its output shaft drives a pulley 10 fixedly connected to it to rotate. The two pulleys 10 rotate in the same direction and at the same speed through belt transmission. Since the rotating rod 8 is fixedly connected to one of the pulleys 10, the rotation of the pulley 10 will directly drive the rotating rod 8 to rotate, thereby providing power input for the reciprocating labeling mechanism. The servo motor 12 can adjust the rotation speed to control the rotation speed of the rotating rod 8, thereby adjusting the reciprocating frequency of the labeling head body 5 to adapt to different carton conveying speeds.
[0029] See Figure 1 and Figure 3 As shown, the conveying mechanism includes a conveyor body 2, and a DC motor 18 is fixedly installed on one side of the mounting frame 1. The DC motor 18 is connected to the conveyor body 2 for transmission. The conveyor body 2 is a belt conveyor.
[0030] In the specific implementation process, after the DC motor 18 starts, it drives the main body 2 of the conveyor to run through the coupling. The main body 2 of the conveyor acts as a belt conveyor, and the belt on its surface conveys the carton along the preset direction. The speed of the DC motor 18 can be adjusted by the speed regulating device, thereby controlling the conveying speed of the main body 2 of the conveyor, so that the conveying speed of the carton matches the labeling rhythm of the labeling head body 5. When the carton is placed on the main body 2 of the conveyor, it will move synchronously with the belt. When it reaches the bottom of the labeling head body 5, the labeling head body 5 completes the labeling, and then the carton is continued to be conveyed to the next process.
[0031] It should be noted that the belt conveyor is a DTII type belt conveyor.
[0032] See Figure 1 and Figure 4 As shown, a pressure sensor is provided at the bottom of the labeling head body 5. The pressure sensor is electrically connected to the servo motor 12. Several sets of positioning protrusions 19 are provided at equal intervals along the transmission direction on the upper surface of the conveyor body 2. Each set of positioning protrusions 19 includes two symmetrically arranged rubber protrusions. The distance between the two rubber protrusions is adapted to the width of the carton. A dustproof sleeve is provided on the outer wall of the reset spring 17. The dustproof sleeve is a corrugated tube structure.
[0033] In the specific implementation process, the pressure sensor at the bottom of the labeling head body 5 monitors the contact pressure between the labeling head body 5 and the carton surface in real time. When the pressure value exceeds the preset threshold, the pressure sensor sends an electrical signal to the servo motor 12. The servo motor 12 adjusts the pressure of the labeling head body 5 by reducing the speed or pausing the rotation to avoid damaging the carton or label due to excessive pressure. When the pressure is insufficient, the servo motor 12 increases the speed to enhance the labeling pressure and ensure that the label is firmly pasted. The positioning protrusions 19 on the conveyor body 2 can limit the carton. The two symmetrical rubber protrusions can adapt to cartons of different widths through the spacing adaptation, preventing the carton from shifting during the transmission process and ensuring the accuracy of the labeling position. The corrugated tube structure dustproof sleeve on the outer wall of the return spring 17 can block dust and impurities from entering the spring gap, preventing the return spring 17 from losing elasticity or getting stuck due to dust accumulation, and extending the service life of the return spring 17.
[0034] Working principle:
[0035] Step 1: After the device is started, the DC motor 18 on one side of the mounting frame 1 runs, driving the main body 2 of the conveyor as a belt conveyor through the coupling. The belt on its surface conveys the carton along the preset direction. The speed of the DC motor 18 is adjustable to control the conveying speed. At the same time, the servo motor 12 on the upper surface of the mounting frame 1 starts, and its output shaft drives one pulley 10 to rotate. The two pulleys 10 rotate in the same direction and at the same speed through the belt 11, thereby driving the rotating rod 8 fixedly connected to one of the pulleys 10 to rotate.
[0036] Step 2: The half gear 9 in the middle section of the rotating rod 8 rotates synchronously with the rotating rod 8. The half gear 9 meshes with the rack 14 which is slidably connected to the fixed slide block 13, driving the rack 14 to make reciprocating linear motion along the fixed slide block 13. The connecting strip 15 at the top of the rack 14 moves accordingly, driving the labeling head body 5 to move through the sliding column 16. The limiting frame 6 guides the sliding column 16 to ensure that the labeling head body 5 moves stably along the preset trajectory. The return spring 17 is always in an elastic deformation state. When the half gear 9 disengages from the rack 14, the return spring 17 assists the rack 14 to return to its original position, ensuring the continuity of the reciprocating motion. The labeling head body 5 completes the labeling action on the carton on the conveying mechanism in the reciprocating motion.
[0037] Step 3: The pressure sensor at the bottom of the labeling head body 5 monitors the contact pressure between the labeling head and the carton surface in real time. When the pressure value exceeds the preset threshold, the pressure sensor sends an electrical signal to the servo motor 12. The servo motor 12 adjusts the pressure of the labeling head body 5 by reducing the speed or pausing the rotation to avoid damaging the carton or label. If the pressure is insufficient, the speed is increased to enhance the labeling pressure. The upper surface of the conveyor body 2 is provided with several sets of positioning protrusions 19 at equal intervals along the transmission direction. The distance between the two symmetrical rubber protrusions of each set of positioning protrusions 19 is adapted to the width of the carton, which can limit the carton and prevent the carton from shifting during the transmission process, ensuring accurate labeling position.
[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A cardboard box labeling device, comprising a mounting frame (1), wherein the inner wall of the mounting frame (1) is provided with a conveying mechanism, characterized in that, The upper surface of the mounting frame (1) is provided with a reciprocating labeling mechanism and a driving mechanism. The reciprocating labeling mechanism includes two fixed columns (7) mounted on the upper surface of one side of the mounting frame (1). A rotating rod (8) is rotatably connected to the opposite side of the fixed columns (7). A half gear (9) is sleeved in the middle section of the rotating rod (8). A rack (14) meshes with the side of the half gear (9). A fixed slide (13) is fixedly mounted on the upper surface of the mounting frame (1). The rack (14) is slidably connected to the fixed slide (13). A connecting strip (15) is installed at the top of the rack (14), and a sliding column (16) is installed at the bottom of the other end of the connecting strip (15). A fixing plate (4) is fixedly installed on the side of the fixed slide (13) near the center of the mounting frame (1). The fixing plate (4) is connected to a limiting frame (6). A labeling head body (5) is installed at the bottom of the sliding column (16). The sliding column (16) is located at the center of the limiting frame (6), and the labeling head body (5) is slidably connected to the inner wall of the limiting frame (6).
2. The carton labeling device as described in claim 1, characterized in that: The sliding column (16) is fitted with a reset spring (17), and the top of the limiting frame (6) is fixedly installed with a limiting bracket (3). The two ends of the reset spring (17) are fixedly connected to the connecting strip (15) and the limiting bracket (3) respectively, and the sliding column (16) is slidably connected to the limiting bracket (3).
3. The carton labeling device as described in claim 2, characterized in that: The drive mechanism includes a servo motor (12) fixedly mounted on the upper surface of the mounting bracket (1). The servo motor (12) is fixedly connected to a pulley (10). There are two pulleys (10). The two pulleys (10) are rotatably connected to one of the fixed columns (7). A belt (11) is connected between the two pulleys (10) and the two pulleys are driven through the belt (11). The rotating rod (8) is fixedly connected to the other pulley (10).
4. The carton labeling device as described in claim 3, characterized in that: The transmission mechanism includes a transmission body (2), and a DC motor (18) is fixedly installed on one side of the mounting frame (1). The DC motor (18) is connected to the transmission body (2) in a transmission connection.
5. A carton labeling device as described in claim 4, characterized in that: The main body of the transmission machine (2) is a belt transmission machine.
6. A cardboard box labeling device as described in claim 5, characterized in that: The labeling head body (5) is equipped with a pressure sensor at the bottom, and the pressure sensor is electrically connected to the servo motor (12).
7. A carton labeling device as described in claim 6, characterized in that: The upper surface of the main body (2) of the conveyor is provided with several sets of positioning protrusions (19) at equal intervals along the conveying direction. Each set of positioning protrusions (19) includes two symmetrically arranged rubber protrusions, and the distance between the two rubber protrusions is adapted to the width of the carton.
8. A carton labeling device as described in claim 7, characterized in that: The outer wall of the reset spring (17) is fitted with a dustproof sleeve, which is a corrugated tube structure.